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ack/lang/cem/cemcom/eval.c

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/* $Header$ */
/* EXPRESSION-CODE GENERATOR */
/* main functions :
EVAL() -- expression tree evaluator
tmp_pointer_var() -- deliver temporary pointer variable
free_tmp_var() -- return the pointer var
store_val() -- store primary expression
load_val() -- load primary expression
auxiliary functions:
assop()
compare()
*/
#include <em.h>
#include "debug.h"
#include "nobitfield.h"
#include "dataflow.h"
#include "arith.h"
#include "type.h"
#include "idf.h"
#include "label.h"
#include "code.h"
#include "assert.h"
#include "def.h"
#include "expr.h"
#include "sizes.h"
#include "Lpars.h"
#include "level.h"
#include "stack.h"
#include "align.h"
#include "mes.h"
#include "atw.h"
#define CRASH() crash("EVAL: CRASH at line %u", __LINE__)
#define roundup(n) ((n) < word_size ? word_size : (n))
char *symbol2str();
char *long2str();
arith tmp_pointer_var();
/* EVAL() serves as the main expression tree evaluator, which turns
any legal expression tree into legal EM code.
The parameters describe how EVAL should treat the expression tree:
struct expr *expr: pointer to root of the expression tree to
be evaluated
int val: indicates whether the resulting expression
is to be dereferenced (if val == RVAL and
expr->ex_lvalue == 1) or not (val == LVAL).
The latter case indicates that the resulting
expression is an lvalue expression which should
not be dereferenced by EVAL
int code: indicates whether the expression tree must be
turned into EM code or not. E.g. the expression
statement "12;" delivers the expression "12" to
EVAL while this should not result in any EM
code
label false_label:
label true_label: if the expression is a logical or relational
expression and if the loop of the program
depends on the resulting value then EVAL
generates jumps to the specified program
labels, in case they are specified
(i.e. are non-zero)
*/
EVAL(expr, val, code, true_label, false_label)
struct expr *expr; /* the expression tree itself */
int val; /* either RVAL or LVAL */
int code; /* generate explicit code or not */
label true_label;
label false_label; /* labels to jump to in logical expr's */
{
register gencode = (code == TRUE);
switch (expr->ex_class) {
case Value: /* just a simple value */
if (gencode)
load_val(expr, val);
break;
case String: /* a string constant */
expr_warning(expr, "(DEBUG) value-class 'String' seen");
if (gencode) {
string2pointer(&expr);
C_lae_dlb(expr->VL_LBL, expr->VL_VALUE);
}
break;
case Float: /* a floating constant */
if (gencode) {
label datlab = data_label();
C_df_dlb(datlab);
C_rom_fcon(expr->FL_VALUE, expr->ex_type->tp_size);
C_lae_dlb(datlab, (arith)0);
C_loi(expr->ex_type->tp_size);
}
break;
case Oper: /* compound expression */
{
register int oper = expr->OP_OPER;
register struct expr *leftop = expr->OP_LEFT;
register struct expr *rightop = expr->OP_RIGHT;
register struct type *tp = expr->OP_TYPE;
if (tp->tp_fund == ERRONEOUS) /* stop immediately */
break;
switch (oper) {
case '+':
/* We have the following possibilities :
int + int, pointer + int, pointer + long,
long + long, double + double
*/
EVAL(leftop, RVAL, code, NO_LABEL, NO_LABEL);
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
if (gencode) {
switch (tp->tp_fund) {
case INT:
case LONG:
if (tp->tp_unsigned)
C_adu(tp->tp_size);
else
C_adi(tp->tp_size);
break;
case POINTER:
C_ads(rightop->ex_type->tp_size);
break;
case DOUBLE:
C_adf(tp->tp_size);
break;
default:
crash("bad type +");
}
}
break;
case '-':
if (leftop == 0) { /* unary */
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
if (gencode) {
switch (tp->tp_fund) {
case DOUBLE:
C_ngf(tp->tp_size);
break;
case INT:
case LONG:
case POINTER:
C_ngi(tp->tp_size);
break;
default:
CRASH();
}
}
break;
}
/* Binary: we have the following flavours:
int - int, pointer - int, pointer - long,
pointer - pointer, long - long, double - double
*/
EVAL(leftop, RVAL, code, NO_LABEL, NO_LABEL);
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
if (!gencode)
break;
switch (tp->tp_fund) {
case INT:
case LONG:
if (tp->tp_unsigned)
C_sbu(tp->tp_size);
else
C_sbi(tp->tp_size);
break;
case POINTER:
if (rightop->ex_type->tp_fund == POINTER)
C_sbs(pointer_size);
else {
C_ngi(rightop->ex_type->tp_size);
C_ads(rightop->ex_type->tp_size);
}
break;
case DOUBLE:
C_sbf(tp->tp_size);
break;
default:
crash("bad type -");
}
break;
case '*':
if (leftop == 0) /* unary */
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
else { /* binary */
EVAL(leftop, RVAL, code, NO_LABEL, NO_LABEL);
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
if (gencode)
switch (tp->tp_fund) {
case INT:
case LONG:
case POINTER:
if (tp->tp_unsigned)
C_mlu(tp->tp_size);
else
C_mli(tp->tp_size);
break;
case DOUBLE:
C_mlf(double_size);
break;
default:
crash("bad type *");
}
}
break;
case '/':
EVAL(leftop, RVAL, code, NO_LABEL, NO_LABEL);
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
if (gencode)
switch (tp->tp_fund) {
case INT:
case LONG:
case POINTER:
if (tp->tp_unsigned)
C_dvu(tp->tp_size);
else
C_dvi(tp->tp_size);
break;
case DOUBLE:
C_dvf(double_size);
break;
default:
crash("bad type /");
}
break;
case '%':
EVAL(leftop, RVAL, code, NO_LABEL, NO_LABEL);
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
if (gencode)
if ( tp->tp_fund == INT
|| tp->tp_fund == LONG
) {
if (tp->tp_unsigned)
C_rmu(tp->tp_size);
else
C_rmi(tp->tp_size);
}
else
crash("bad type %%");
break;
case LEFT:
EVAL(leftop, RVAL, code, NO_LABEL, NO_LABEL);
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
if (gencode)
if (tp->tp_unsigned)
C_slu(tp->tp_size);
else
C_sli(tp->tp_size);
break;
case RIGHT:
EVAL(leftop, RVAL, code, NO_LABEL, NO_LABEL);
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
if (gencode)
if (tp->tp_unsigned)
C_sru(tp->tp_size);
else
C_sri(tp->tp_size);
break;
case '<':
case LESSEQ:
case '>':
case GREATEREQ:
case EQUAL:
case NOTEQUAL:
EVAL(leftop, RVAL, code, NO_LABEL, NO_LABEL);
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
if (gencode) {
/* The operands have the same type */
arith size = leftop->ex_type->tp_size;
switch (tp->tp_fund) {
case INT:
case LONG:
if (leftop->ex_type->tp_unsigned)
C_cmu(size);
else
C_cmi(size);
break;
case FLOAT:
case DOUBLE:
C_cmf(size);
break;
case POINTER:
C_cmp();
break;
case ENUM:
C_cmi(size);
break;
default:
CRASH();
}
if (true_label != 0) {
compare(oper, true_label);
C_bra(false_label);
}
else {
label l_true = text_label();
label l_end = text_label();
compare(oper, l_true);
C_loc((arith)0);
C_bra(l_end);
C_df_ilb(l_true);
C_loc((arith)1);
C_df_ilb(l_end);
}
}
break;
case '&':
case '|':
case '^':
/* both operands should have type int */
EVAL(leftop, RVAL, code, NO_LABEL, NO_LABEL);
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
if (gencode) {
arith size = tp->tp_size;
if (size < word_size)
size = word_size;
switch (oper) {
case '&':
C_and(size);
break;
case '|':
C_ior(size);
break;
case '^':
C_xor(size);
break;
}
}
break;
case '=':
#ifndef NOBITFIELD
if (leftop->ex_type->tp_fund == FIELD) {
/* assignment to bitfield variable
*/
eval_field(expr, code);
break;
}
#endif NOBITFIELD
EVAL(rightop, RVAL, TRUE, NO_LABEL, NO_LABEL);
if (gencode)
C_dup(ATW(tp->tp_size));
if (leftop->ex_class != Value) {
EVAL(leftop, LVAL, TRUE, NO_LABEL, NO_LABEL);
store_block(tp->tp_size, tp->tp_align);
}
else
store_val(
&(leftop->ex_object.ex_value),
leftop->ex_type
);
break;
case PLUSAB:
case MINAB:
case TIMESAB:
case DIVAB:
case MODAB:
case LEFTAB:
case RIGHTAB:
case ANDAB:
case XORAB:
case ORAB:
#ifndef NOBITFIELD
if (leftop->ex_type->tp_fund == FIELD) {
eval_field(expr, code);
break;
}
#endif NOBITFIELD
if (leftop->ex_class != Value) {
arith old_offset;
arith tmpvar = tmp_pointer_var(&old_offset);
EVAL(leftop, LVAL, TRUE, NO_LABEL, NO_LABEL);
C_lal(tmpvar);
C_sti(pointer_size);
C_lal(tmpvar);
C_loi(pointer_size);
C_loi(tp->tp_size);
EVAL(rightop, RVAL, TRUE, NO_LABEL, NO_LABEL);
assop(tp, oper);
if (gencode)
C_dup(roundup(tp->tp_size));
C_lal(tmpvar);
C_loi(pointer_size);
C_sti(tp->tp_size);
free_tmp_var(old_offset);
}
else {
load_val(leftop, RVAL);
EVAL(rightop, RVAL, TRUE, NO_LABEL, NO_LABEL);
assop(tp, oper);
if (gencode)
C_dup(roundup(tp->tp_size));
store_val(
&(leftop->ex_object.ex_value),
leftop->ex_type
);
}
break;
case '(':
{
register struct expr *expr;
arith ParSize = (arith)0;
if (expr = rightop) {
/* function call with parameters*/
while ( expr->ex_class == Oper &&
expr->OP_OPER == PARCOMMA
) {
EVAL(expr->OP_RIGHT, RVAL, TRUE,
NO_LABEL, NO_LABEL);
ParSize +=
ATW(expr->ex_type->tp_size);
expr = expr->OP_LEFT;
}
EVAL(expr, RVAL, TRUE, NO_LABEL, NO_LABEL);
ParSize += ATW(expr->ex_type->tp_size);
}
if ( leftop->ex_class == Value
&& leftop->VL_CLASS == Name
) {
/* just an example:
main() { (*((int (*)())0))(); }
*/
C_cal(leftop->VL_IDF->id_text);
#ifdef DATAFLOW
{ extern char options[];
if (options['d'])
DfaCallFunction(
leftop->VL_IDF->id_text
);
}
#endif DATAFLOW
}
else {
EVAL(leftop, LVAL, TRUE, NO_LABEL, NO_LABEL);
C_cai();
}
/* remove parameters from stack */
if (ParSize > (arith)0)
C_asp(ParSize);
if (!gencode)
break;
if (is_struct_or_union(tp->tp_fund)) {
C_lfr(pointer_size);
load_block(tp->tp_size, tp->tp_align);
}
else
C_lfr(ATW(tp->tp_size));
break;
}
case '.':
EVAL(leftop, LVAL, code, NO_LABEL, NO_LABEL);
ASSERT(is_cp_cst(rightop));
if (gencode)
C_adp(rightop->VL_VALUE);
break;
case ARROW:
EVAL(leftop, RVAL, code, NO_LABEL, NO_LABEL);
ASSERT(is_cp_cst(rightop));
if (gencode)
C_adp(rightop->VL_VALUE);
break;
case ',':
EVAL(leftop, RVAL, FALSE, NO_LABEL, NO_LABEL);
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
break;
case '~':
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
if (gencode)
C_com(tp->tp_size);
break;
case POSTINCR:
case POSTDECR:
case PLUSPLUS:
case MINMIN:
{
arith old_offset, tmp;
arith esize = tp->tp_size;
#ifndef NOBITFIELD
if (leftop->ex_type->tp_fund == FIELD) {
eval_field(expr, code);
break;
}
#endif NOBITFIELD
if (leftop->ex_class != Value) {
tmp = tmp_pointer_var(&old_offset);
EVAL(leftop, LVAL, TRUE, NO_LABEL, NO_LABEL);
C_dup(pointer_size);
C_lal(tmp);
C_sti(pointer_size);
C_loi(tp->tp_size);
}
else
load_val(leftop, RVAL);
/* We made the choice to put this stuff here
and not to put the conversion in the expression
tree because this conversion is EM dependent
and not described in C
*/
if (esize < word_size) {
conversion(tp, word_type);
esize = word_size;
}
if (gencode && (oper == POSTINCR || oper == POSTDECR))
C_dup(esize);
EVAL(rightop, RVAL, TRUE, NO_LABEL, NO_LABEL);
assop(tp, oper);
if (gencode && (oper == PLUSPLUS || oper == MINMIN))
C_dup(esize);
if (tp->tp_size < word_size)
conversion(word_type, tp);
if (leftop->ex_class != Value) {
C_lal(tmp); /* always init'd */
C_loi(pointer_size);
C_sti(tp->tp_size);
free_tmp_var(old_offset);
}
else
store_val(
&(leftop->ex_object.ex_value),
leftop->ex_type
);
break;
}
case '?': /* must be followed by ':' */
{
label l_true = text_label();
label l_false = text_label();
label l_end = text_label();
EVAL(leftop, RVAL, TRUE, l_true, l_false);
C_df_ilb(l_true);
EVAL(rightop->OP_LEFT, RVAL, code,
NO_LABEL, NO_LABEL);
C_bra(l_end);
C_df_ilb(l_false);
EVAL(rightop->OP_RIGHT, RVAL, code,
NO_LABEL, NO_LABEL);
C_df_ilb(l_end);
break;
}
case AND:
if (true_label == 0) {
label l_true = text_label();
label l_false = text_label();
label l_maybe = text_label();
label l_end = text_label();
EVAL(leftop, RVAL, TRUE, l_maybe, l_false);
C_df_ilb(l_maybe);
if (gencode) {
EVAL(rightop, RVAL, TRUE,
l_true, l_false);
C_df_ilb(l_true);
C_loc((arith)1);
C_bra(l_end);
C_df_ilb(l_false);
C_loc((arith)0);
C_df_ilb(l_end);
}
else {
EVAL(rightop, RVAL, FALSE, l_false,
l_false);
C_df_ilb(l_false);
}
}
else {
label l_maybe = text_label();
EVAL(leftop, RVAL, TRUE, l_maybe, false_label);
C_df_ilb(l_maybe);
EVAL(rightop, RVAL, code, true_label,
false_label);
}
break;
case OR:
if (true_label == 0) {
label l_true = text_label();
label l_false = text_label();
label l_maybe = text_label();
label l_end = text_label();
EVAL(leftop, RVAL, TRUE, l_true, l_maybe);
C_df_ilb(l_maybe);
if (gencode) {
EVAL(rightop, RVAL, TRUE,
l_true, l_false);
C_df_ilb(l_false);
C_loc((arith)0);
C_bra(l_end);
C_df_ilb(l_true);
C_loc((arith)1);
C_df_ilb(l_end);
}
else {
EVAL(rightop, RVAL, FALSE, l_true,
l_true);
C_df_ilb(l_true);
}
}
else {
label l_maybe = text_label();
EVAL(leftop, RVAL, TRUE, true_label, l_maybe);
C_df_ilb(l_maybe);
EVAL(rightop, RVAL, code, true_label,
false_label);
}
break;
case '!':
if (true_label == 0) {
if (gencode) {
label l_true = text_label();
label l_false = text_label();
label l_end = text_label();
EVAL(rightop, RVAL, TRUE,
l_false, l_true);
C_df_ilb(l_false);
C_loc((arith)0);
C_bra(l_end);
C_df_ilb(l_true);
C_loc((arith)1);
C_df_ilb(l_end);
}
else
EVAL(rightop, RVAL, FALSE,
NO_LABEL, NO_LABEL);
}
else
EVAL(rightop, RVAL, code, false_label,
true_label);
break;
case INT2INT:
case INT2FLOAT:
case FLOAT2INT:
case FLOAT2FLOAT:
EVAL(rightop, RVAL, code, NO_LABEL, NO_LABEL);
if (gencode)
conversion(rightop->ex_type, leftop->ex_type);
break;
default:
crash("(EVAL) bad operator %s\n", symbol2str(oper));
}
/* If the rvalue of the expression is required but
only its lvalue is evaluated, its rvalue is
loaded by the following statements:
*/
if (gencode && val == RVAL && expr->ex_lvalue == 1)
load_block(expr->ex_type->tp_size,
expr->ex_type->tp_align);
break;
}
case Type:
default:
crash("(EVAL) bad expression class");
}
}
/* compare() serves as an auxiliary function of EVAL */
compare(relop, lbl)
int relop;
label lbl;
{
switch (relop) {
case '<':
C_zlt(lbl);
break;
case LESSEQ:
C_zle(lbl);
break;
case '>':
C_zgt(lbl);
break;
case GREATEREQ:
C_zge(lbl);
break;
case EQUAL:
C_zeq(lbl);
break;
case NOTEQUAL:
C_zne(lbl);
break;
default:
CRASH();
}
}
/* assop() generates the opcode of an assignment operators op= */
assop(type, oper)
struct type *type;
int oper;
{
register arith size = type->tp_size;
register uns = type->tp_unsigned;
if (size < word_size)
size = word_size;
switch (type->tp_fund) {
case CHAR:
case SHORT:
case INT:
case LONG:
case ENUM:
switch (oper) {
case PLUSAB:
case PLUSPLUS:
case POSTINCR:
if (uns)
C_adu(size);
else
C_adi(size);
break;
case MINAB:
case MINMIN:
case POSTDECR:
if (uns)
C_sbu(size);
else
C_sbi(size);
break;
case TIMESAB:
if (uns)
C_mlu(size);
else
C_mli(size);
break;
case DIVAB:
if (uns)
C_dvu(size);
else
C_dvi(size);
break;
case MODAB:
if (uns)
C_rmu(size);
else
C_rmi(size);
break;
case LEFTAB:
if (uns)
C_slu(size);
else
C_sli(size);
break;
case RIGHTAB:
if (uns)
C_sru(size);
else
C_sri(size);
break;
case ANDAB:
C_and(size);
break;
case XORAB:
C_xor(size);
break;
case ORAB:
C_ior(size);
break;
}
break;
case FLOAT:
case DOUBLE:
switch (oper) {
case PLUSAB:
case PLUSPLUS:
case POSTINCR:
C_adf(size);
break;
case MINAB:
case MINMIN:
case POSTDECR:
C_sbf(size);
break;
case TIMESAB:
C_mlf(size);
break;
case DIVAB:
C_dvf(size);
break;
}
break;
case POINTER:
if (oper == MINAB || oper == MINMIN || oper == POSTDECR)
C_ngi(size);
C_ads(size);
break;
case ERRONEOUS:
break;
default:
crash("(assop) bad type %s\n", symbol2str(type->tp_fund));
}
}
/* tmp_pointer_var() returns the EM address of a new temporary
pointer variable needed at increment, decrement and assignment
operations to store the address of some variable or lvalue-expression.
*/
arith
tmp_pointer_var(oldoffset)
arith *oldoffset; /* previous allocated address */
{
struct stack_level *stl = local_level;
*oldoffset = stl->sl_local_offset;
stl->sl_local_offset =
- align(-stl->sl_local_offset + pointer_size, pointer_align);
if (stl->sl_local_offset < stl->sl_max_block)
stl->sl_max_block = stl->sl_local_offset;
return stl->sl_local_offset;
}
/* free_tmp_var() returns the address allocated by tmp_pointer_var()
and resets the last allocated address.
*/
free_tmp_var(oldoffset)
arith oldoffset;
{
local_level->sl_local_offset = oldoffset;
}
/* store_val() generates code for a store operation.
There are four ways of storing data:
- into a global variable
- into an automatic local variable
- into a local static variable
- absolute addressing
*/
store_val(vl, tp)
register struct value *vl;
struct type *tp;
{
arith size = tp->tp_size;
int tpalign = tp->tp_align;
int al_on_word;
register int inword;
register int indword;
arith val = vl->vl_value;
if (vl->vl_class == Const) { /* absolute addressing */
load_cst(val, pointer_size);
store_block(size, tpalign);
return;
}
al_on_word = (tpalign % word_align == 0);
if (!(inword = (size == word_size && al_on_word)))
indword = (size == dword_size && al_on_word);
if (vl->vl_class == Name) {
register struct idf *id = vl->vl_data.vl_idf;
register struct def *df = id->id_def;
if (df->df_level == L_GLOBAL) {
if (inword)
C_ste_dnam(id->id_text, val);
else
if (indword)
C_sde_dnam(id->id_text, val);
else {
C_lae_dnam(id->id_text, val);
store_block(size, tpalign);
}
}
else {
ASSERT(df->df_sc != STATIC);
if (inword)
C_stl(df->df_address + val);
else
if (indword)
C_sdl(df->df_address + val);
else {
C_lal(df->df_address + val);
store_block(size, tpalign);
df->df_register = REG_NONE;
}
}
}
else {
label dlb = vl->vl_data.vl_lbl;
ASSERT(vl->vl_class == Label);
if (inword)
C_ste_dlb(dlb, val);
else
if (indword)
C_sde_dlb(dlb, val);
else {
C_lae_dlb(dlb, val);
store_block(size, tpalign);
}
}
}
/* load_val() generates code for stacking a certain value (from ex),
which can be obtained in one of the following ways:
- value from absolute addressed memory
- constant value
- function result
- global variable
- static variable
- local variable
*/
load_val(expr, val)
struct expr *expr; /* expression containing the value */
int val; /* generate either LVAL or RVAL */
{
register struct type *tp = expr->ex_type;
register int rvalue = (val == RVAL && expr->ex_lvalue != 0);
register arith size = tp->tp_size;
register int tpalign = tp->tp_align;
register int al_on_word;
register int inword, indword;
register arith val = expr->VL_VALUE;
if (expr->VL_CLASS == Const) {
if (rvalue) { /* absolute addressing */
load_cst(val, pointer_size);
load_block(size, tpalign);
}
else /* integer, unsigned, long, enum etc */
load_cst(val, size);
return;
}
if (rvalue) {
al_on_word = (tpalign % word_align == 0);
if (!(inword = (size == word_size && al_on_word)))
indword = (size == dword_size && al_on_word);
}
if (expr->VL_CLASS == Label) {
if (rvalue) {
if (inword)
C_loe_dlb(expr->VL_LBL, val);
else
if (indword)
C_lde_dlb(expr->VL_LBL, val);
else {
C_lae_dlb(expr->VL_LBL, val);
load_block(size, tpalign);
}
}
else {
C_lae_dlb(expr->VL_LBL, (arith)0);
C_adp(val);
}
}
else {
register struct idf *id = expr->VL_IDF;
register struct def *df;
ASSERT(expr->VL_CLASS == Name);
if ((df = id->id_def)->df_type->tp_fund == FUNCTION)
/* the previous statement tried to catch a function
identifier, which may be cast to a pointer to a
function.
ASSERT(!(rvalue)); ???
*/
C_lpi(id->id_text);
else
if (df->df_level == L_GLOBAL) {
if (rvalue) {
if (inword)
C_loe_dnam(id->id_text, val);
else
if (indword)
C_lde_dnam(id->id_text, val);
else {
C_lae_dnam(id->id_text, val);
load_block(size, tpalign);
}
}
else {
C_lae_dnam(id->id_text, (arith)0);
C_adp(val);
}
}
else {
ASSERT(df->df_sc != STATIC);
if (rvalue) {
if (inword)
C_lol(df->df_address + val);
else
if (indword)
C_ldl(df->df_address + val);
else {
C_lal(df->df_address + val);
load_block(size, tpalign);
df->df_register = REG_NONE;
}
}
else {
C_lal(df->df_address);
C_adp(val);
df->df_register = REG_NONE;
}
}
}
}
load_cst(val, siz)
arith val, siz;
{
if (siz <= word_size)
C_loc(val);
else
if (siz == dword_size)
C_ldc(val);
else {
label datlab;
C_df_dlb(datlab = data_label());
C_rom_icon(long2str((long)val, 10), siz);
C_lae_dlb(datlab, (arith)0);
C_loi(siz);
}
}
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